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hi there was wondering I have 4 gps I think 3 males 1 female or two unsure, one for sure I have them all in separate cages as I got them for different people was wondering how to introduce them without fighting all are around 1 to 2 years old also I have one when out will run up to the other cage and gnaw at the cage like hes either wants to fight or ?? I also have my female who bites and I cannot handle her or my older children cannot I tried to gain trust no way I got her recently from someone else please help